From nobody Tue Dec 30 13:24:17 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B205CC2BB3F for ; Wed, 15 Nov 2023 20:35:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344580AbjKOUff (ORCPT ); Wed, 15 Nov 2023 15:35:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344493AbjKOUfH (ORCPT ); Wed, 15 Nov 2023 15:35:07 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 132841AE; Wed, 15 Nov 2023 12:34:50 -0800 (PST) Received: from pps.filterd (m0353724.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AFKFcqh001581; Wed, 15 Nov 2023 20:34:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=WOj9NbaIG31eRcVAcdJNRN2GuttnZIt4WiIOTuHMBVs=; b=MJExlYpLmovk8yp/+2naQ8MJsLLT2rfHefOrWwbpbg4QXZSpfLbSC5PE/083zyHLPLEA 6zP/3AgLfaQeSpvLv8XSxzhUMT/AWiCGbd+9DWmiVm/UZuYpzBjfXLh6Cq+SRVP6iFwB SJuXMi0iIJVNzHFR5CFCr7LGNzwKiWB+kkuZ+rrbCRmnwgFsHV8rgaCF01+YDAzP+ub9 Bv8F1/6R6npW0ydc2s13rSMQo8c3S3p+axWoRU+sVJAsGaC0FjTbj0+Z8O3F4ipCu/b1 b+mdUMT8+dGrkZiNLQ5X50BHK27m/ksyBel6amjf3Lzi+g09GUkNwDXD3+IScThnn/6g MQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3ud4v38cns-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Nov 2023 20:34:24 +0000 Received: from m0353724.ppops.net (m0353724.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3AFKSLRG001122; Wed, 15 Nov 2023 20:34:24 GMT Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3ud4v38cnd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Nov 2023 20:34:24 +0000 Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3AFKJ0eN021647; Wed, 15 Nov 2023 20:34:23 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 3uap5k9k97-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Nov 2023 20:34:23 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 3AFKYKDa36045202 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 15 Nov 2023 20:34:20 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7BB6C20040; Wed, 15 Nov 2023 20:34:20 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2E66F20043; Wed, 15 Nov 2023 20:34:19 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.9.51]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 15 Nov 2023 20:34:19 +0000 (GMT) From: Ilya Leoshkevich To: Alexander Gordeev , Alexander Potapenko , Andrew Morton , Christoph Lameter , David Rientjes , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka Cc: Christian Borntraeger , Dmitry Vyukov , Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Roman Gushchin , Sven Schnelle , Ilya Leoshkevich Subject: [PATCH 07/32] kmsan: Remove a useless assignment from kmsan_vmap_pages_range_noflush() Date: Wed, 15 Nov 2023 21:30:39 +0100 Message-ID: <20231115203401.2495875-8-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231115203401.2495875-1-iii@linux.ibm.com> References: <20231115203401.2495875-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: VFJOs4fGta1DSdAVChPTZKlQC1KrKYwA X-Proofpoint-ORIG-GUID: 2OfAh22UbXV5iLL7SC5fqzTgA8shiavv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-15_20,2023-11-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 suspectscore=0 impostorscore=0 malwarescore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 phishscore=0 bulkscore=0 mlxlogscore=994 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311150163 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The value assigned to prot is immediately overwritten on the next line with PAGE_KERNEL. The right hand side of the assignment has no side-effects. Fixes: b073d7f8aee4 ("mm: kmsan: maintain KMSAN metadata for page operation= s") Suggested-by: Alexander Gordeev Signed-off-by: Ilya Leoshkevich Reviewed-by: Alexander Potapenko --- mm/kmsan/shadow.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c index b9d05aff313e..2d57408c78ae 100644 --- a/mm/kmsan/shadow.c +++ b/mm/kmsan/shadow.c @@ -243,7 +243,6 @@ int kmsan_vmap_pages_range_noflush(unsigned long start,= unsigned long end, s_pages[i] =3D shadow_page_for(pages[i]); o_pages[i] =3D origin_page_for(pages[i]); } - prot =3D __pgprot(pgprot_val(prot) | _PAGE_NX); prot =3D PAGE_KERNEL; =20 origin_start =3D vmalloc_meta((void *)start, KMSAN_META_ORIGIN); --=20 2.41.0